Well, a compound is <span>a thing that is composed of two or more separate elements; a mixture. So sugar and water is a compound (Example) But sugar dissolves in water so that is a compound that will not decompose but it really just depends on your materials.</span>
Statement #2 does not correctly compare boron to copper. B Boron is a semi metal so it can conduct electricity however metals (like Cu copper) are much better conductors of electricity.
Answer:
false all producers are at the top of food web
Answer:
0.3171 moles
Explanation:
The computation of the number of moles of gas in the drum is shown below;
The ideal gas equation is
PV = nRT
where
P denotes the pressure of the gas
V denotes the volume of the container
n denotes the number of moles of gas
R denotes the Gas constant
T denotes the temperature
Also P proportionate to n
Now the following formula should be used
P_1 ÷ P_2 = n_1 ÷ n_2
742 ÷ 759 = 0.31 ÷ n_2
n_2 = 759 × 0.31 ÷742
= 0.3171 moles
The total amount of water in the beaker is 0.8 Liters
calculation
convert 300 Ml in liters
that is 1 L = 1000 Ml
? = 300 Ml
by cross multiplication
1 L x300 Ml/ 1000 Ml = 0.3 Ml
total is therefore = 0.5 Ml + 0.3 Ml = 0.8 Liters